This review provides a comprehensive examination of circularly polarized luminescence (CPL) in Lanthanide(III) systems, encompassing their historical development, present challenges, and future applications. Starting with early discoveries and key milestones, we trace the evolution of CPL studies, highlighting seminal works and breakthroughs that have shaped current understanding. Special emphasis is placed on the processing of these complexes in both solution and solid-state forms, delineating how different environments affect CPL properties. We delve into the challenges that researchers face in this field, including synthetic hurdles, stability issues, and the need for enhanced dissymmetry factors and emission quantum yields. Additionally, the review explores strategies to overcome these obstacles, such as innovative coordination chemistry design, advanced characterization techniques, and novel processing methods. Finally, we discuss potential applications of Lanthanide(III) CPL complexes, from security and display technologies to biological fingerprint. By providing a historical perspective, identifying current challenges, and outlining future directions, this review aims to serve as a valuable resource for researchers and practitioners in the field of luminescent materials and beyond.

中文翻译：

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镧系元素 （III） 配合物圆偏振发光的前景和挑战：从基于溶液的系统到固态应用


本文对镧系元素 （III） 系统中的圆偏振发光 （CPL） 进行了全面研究，包括它们的历史发展、当前挑战和未来应用。从早期发现和关键里程碑开始，我们追溯了 CPL 研究的演变，突出了影响当前理解的开创性工作和突破。特别强调这些复合物以溶液和固态形式加工，描述了不同的环境如何影响 CPL 特性。我们深入研究了研究人员在该领域面临的挑战，包括合成障碍、稳定性问题以及增强不对称因子和发射量子产率的需求。此外，该综述还探讨了克服这些障碍的策略，例如创新的配位化学设计、先进的表征技术和新颖的加工方法。最后，我们讨论了镧系元素 （III） CPL 复合物的潜在应用，从安全和显示技术到生物指纹。通过提供历史视角、确定当前挑战和概述未来方向，本综述旨在为发光材料及其他领域的研究人员和从业者提供宝贵的资源。